agraphia vs encephalopathy

agraphia and encephalopathy both are nouns.

Word	Noun	Adjective	Verb	Adverb
agraphia	Yes	No	No	No
encephalopathy	Yes	No	No	No

As nouns, encephalopathy is a hypernym of agraphia; that is, encephalopathy is a word with a broader meaning than agraphia:

agraphia: a loss of the ability to write or to express thoughts in writing because of a brain lesion
encephalopathy: any disorder or disease of the brain

Other hypernyms of agraphia include brain disease, brain disorder.

agraphia (noun)	encephalopathy (noun)
a loss of the ability to write or to express thoughts in writing because of a brain lesion	any disorder or disease of the brain